Apparatus for regulating temperature.



J. F. GALLAGHER.

APPARATUS FOR REGULATING TEMPERATURE.

APPLICATION FILED 1AN.19.19I4.

1,149,818, Patented Aug. 10,1915

3 SHEETSSHEET I.

IN VE/V TUB J. F. GALLAGHER.

APPARATUS FOR REGULATING TEMPERATURE.

APPLICATION man mi. 19, 1914 1, 149,81 8. Patented Aug. 10, 1915.

3 SHEETS-SHEET 2.

J. F. GALLAGHER.

APPARATUS FOR REGULAHNG TEMPERATURE.

APPLICATION HLED JAN. 19, 1914. lfi filg. Patented Aug. 10, 1915.

3 SHEETS-SHEET 3.

ISSES 7 M/l/E/VTOR UNITED STATES PATENT Fm.

JAMES F. GALLAGHER, OF NEW YORK, N. Y.. ASSIGNOR 0F ONE-HALF TO PETER J. LAVELLE, OF NEW YORK, N. Y.-

APPARATUS FOR REGULATING TEMPERATURE.

Specification of Letters Patent.

Patented Aug. 1U, 1915.

lie it known that 1, Jones F. Guideline, a citizen of the United States of America, residing in the borough of Brooklyn of the ity of New York, county of Kings, and State ol New York, have invented certain new and useful Improvements in Apparatus for Regulating 'lemperature, of which the following is a specification.

Several dill'erent types of apparatus are at present in use for autonmtically controlling the supply of a heating medium, such as steam or hot water, to a. radiating member whereby when the heat of the room in whichthe radiator is located reaches a predetermined temperature, the flow of the heating medium will be diminished or else entirely shut oft, and whereby when the temperatureot the room falls below a predetermined temperature, the heating medium will be either supplied to the radiator, should it have been previously cut oli', or else the supply of the heating medium will be increased in quantity it some were being supplied at that time. An apparatus for accomplishing this purpose is shown in the patent to Johnson No. 733.210. in. the construction shown in said patent the temperature of the room is indirectly dependent upon the position of an indicator arm that is positioned over and in reference to a. marked dial. In such a construction the flow of the heating medium to the radiator is controlled by a primary valve that is directly connected to a primary valve motor. This motor is connected to a separate source of fluid supply such as air under pressure, and the How of operating air to the primary valve motor is controlled by a secondary valve that is in turn connected to. an air-operated secondary-valve motor whose operation is controlled by a thermostatic sensitive member, often referred to as a thermostatic valve. This thermostatic valve is dependent for its operation upon the position of the indicator arm which is positioned over the marked dial. The device comprising this thermostatic valve and dial is known in the trade as a thermostat and its adjustment is quite delicute. For this reason, when the thermostat has been once set to maintain the proper normal temperature of the room. when it is to be occupied, it is desirable not to 'move the indicator arm for such purposes as cutting off or diminishing the supply of heating medium to the radiator when the room is not to be occupied.

When the temperature of the room rises as high as is normally required the thermostatic valve h ein, as H, opens, thus perinitting ajspr n-g-,:as 23, of the secondary valve motor, as vF, to cause the secondary valve, as'E, to open whereby air pressure can be supplied to the primary motor in order to close the primary valve, as B. The pressure of the air for operating the motors is usually maintained constant and uniform as for example at fifteen pounds. At night, however, in such buildings as school-houses or the like, in order to save fuel it is desirable to shut off the heat from all rooms except as may be desired to be occupied.

According to my invention the pressure of the air supply to the motors is dropped for instance fifty per cent. during the night and then, since there is not enough power to 0perate the secondary valve motor, the secondary valve will remain open due to the motor spring, as 23, regardless of whether or not the thermostatic valve, as H, is open or closed. At such time as it may be desired to heat to a uniform temperature some particular room or rooms, this can be effected by bringing into operation a device or attachment which will be subsequently described. One form or the device or attachment is marked A in Figure l and another valve when the pressure of the air supplied v to the primary valve motor and secondary valve motor has been decreased. When the air supplied to the primary motor has been cut ofi by the closing of the secondary valve a spring, as 24, in the primary valve motor can operate to open the primary valve.

It will be noted that the air pressure in the system even when reduced should be sufficient so that when the secondary valve 1) is opened the primary motor will operate to close the primary valve.

As showing certain specific embodiments of the invention reference is made to the drawings forming a part of this specification, and in which drawings,

Fig. 1 is a diagrammatic view illustrating a system for regulating the temperature of a room, one form' of the device or attachment which enables the present invention to be realized being indicated thereon by the refe erence character A. Fig. 2 is a perspectiveview of the device or attachment indicated by the reference character A in Fig. 1.

device K. Fig. 9 isa sectional view, looking upwardly inthe direction of the arrows,

. taken on the line 9 9 of Fig, Fig. 10

illustrates-a heating system embodying my invention.

In' Fig. 1, B indicatesa primary valve whichcontrols the How of the heating medium to the radiator; Ca motor for operatingthe pr mary valve D a compressed air supply for the primary motor; E a sec ondary val.ve ,for controlling said supply; F a motor connected to the secondaryvalve for operating the same; Ga compressed air supply for the secondary motor {and H a thermostatic sensitive member or valve for controlling the secondary motor F. fAs all of this particular construction 1 in Fig. 1,

with the exception of the structure indicated by A, is well known in the art, it is believed that further description'relative thereto is unnecessary at this time.

In the thermostat illustrated in Figs. 5 and 6, H indicates a thermostatic sensitive valve (corresponding to the valve H shown j in Fig. 1) for controlling the secondary valve motor'F" (which corresponds to the motor F in Fig. 1) Motor F operates the toggle mechanism which'is connected to the secondary valve E for controlling the opera ationof a primary valve motor. This valve E corresponds to the valve Eshown in Fig.'= 1. The mechanism' for operating the sec ondary valve E from the' motor F com prises a swingingyoke or frame'l which ispivoted to cars 2 "which'are on thetherm'ostatic main frame or backing 3'. This'swinging yoke is' pressed by the compression" spring 4 so that its upper end'tends to swing toward the main frame-or backing 3. The toggle mechanism previously. referred to comprises the upper toggle member 5'and the lower toggle member 6 which are pivotally connected together at 7 and which are also pivotally connected respectively-to the upper andlower portions of the swinging:

frame at the points 8 and 9. Smallftension springs indicated at 10 are connected at :11"

and 12? indirectly to the toggle members so as to tend toretain the toggle members in the position indicated in Fig. (3. The upper 'togglen e nber has at its upperfree end the yoke I'Zi' ha'vmg. knobs that enter the circumferential grooved portion of the valve E.

In theupper right hand portion of Fig. 5

there i's'lgindieated the devibe'or attachment a K which is shown more in detail in Figs. 7 and 1S. This device cpmprises a body memberlel which can be's'ec ui'd in place on the .maifi frame, or backing by any suitable means such as the screw 15. There is pivot'ally,mounted upon" said body member the upright lever 16, one end of which is provided with a laterally extending lug-17- that extend's' behind 'the upper free end of the swingingyokel; Between tlie'body Hand spring 18 arranged so as to tend to' force the lngoutwardly' againstthe yoke. In other saidle'vei'" there is located a compression words the' ,spring tends to force the upper.v free end of the yoke away from the main frame or backing 3 so as .to'open. the'secondary 'va'l've E There is: also' mounted "upon the body member 14 'a-locking or holding'memb'e'r which 1 preferably comprises '21 cam," as 1'9, -arra ngedso as'toforce the-lever against-the conipressionof the spring and to"hold-'the=lever in thisposition when de-- sired. The-movement imparted to the lever,

by this locking brcontrollingI cam is sufli; cierittowithdraw the lu'g 17 from contact withthe yoke 'thus permittingthe thermostat toope rate in=the=same manner as if the deviceoi" attachmentv'ere not secured in placeupon the main frame or, backing 3.

Asabove indicated, itisi often desirable to cut oflfthe supply of heatto =the several 7 rooms inja building during certain periods and this can-be accomplished by decreasing the pressure of air supplied, to the valve.

motors and particularly that-which is suppliedAto -the secondary. valve motor. pressure, however, should besufficient to This cause thewprimary motor to close the primary valve-when-the secondary valve is open:.' In order to assist the secondary valve motor to open thesecondaryvalve, the device orattachment A,- or the device or attachment K is provided, which, when allowed/to operate,ppresses against a movable member operatively connected to the sec ondary valve-in a direction tending to open said-secondary valve.

The device or. attachment K. can be brought into operation by turning the cam 19 .by means of the thumb member 20, so thatthe cam will not engage or lock the lever16, then'thespring will force the lug 17. against the yoke and thus assist the motor VI". 1 in moving the secondary valve E. In rotherwords, when the spring is thusforcing the lugagainst the yoke the secondary valve motor F will .be operated by air under a lesser pressure tnanwould be the case if the attachment K were not utilized. It will therefore be noted that with the lug 17 pressing against the yoke the temperature of the room can be maintained even when the air pressure supplied to the secondary valve has been i'naterially reduced.

In Figs. 2, 3, i and 4 there is clearly illustrated the form A which may be secured to the main frame or backing 3 by the screw 15 being passed through the opening In this form 24 is the body member, is the pivoted lever, 26 is the lug that extends behind the yoke, 27 is the compression spring, and '28 is the locking member which engages the free end of the lever to hold the latter in position where the lug '26 cannot press against theyoke. This device which is indicated by A in Fig. 2 is the same in its function and mode of operation as the form of device indicated by K.

In Fig. 10 a system is illustrated for heating the several rooms of a building. These rooms are indicated by the reference characters L, M, N and O, and in each room there is located and included as a part of the heating system the arrangement shown in Fig. 1, it being understood that the ther- 'mostat which controls the operation of the 'motor C connected to the primary valve B "may be the same as that shown in Figsfi and 6. y

In both Figs. 1 and 10 the same reference character denotes the same part.

The boiler or heater shown in Fig. 10 is indicated by 29. This supplies the heating medium to the radiators R by'means'of the main supply pipe 30 and the several branches'SL' A return pipe 32 from each of the radiators connects the latter to the boiler. The how of heating medium, be it steam or Water. througlreach of the branch pipes 3i is controlled by the primary valve B that is connected to and operated by the primary valve motors (l. which comprises the secondary valve such as E, the secondary valve motor, such asF,

the sensitive. thermostat valve such as H,

and the device or attachment A. shown in Fig. 1 or K in Figs. 5 and 6, is designated as X. This thermostat is located in each room and a commercial embodiment of said thermostat is illustrated in Figs. 5 and 6. Zach of the primary valve motors C and the secondary valve motors l are supplied with air by means of the branch pipes D and C that lead from the main air supply pipe 33 connected to the compressed air storage tank 34. The air is supplied to the storage tank 34: by any suitable air pumping means 1 as 35. In the mainair supply pipe 33'there is also included a reducing valve 36 whereby "the .air delivered through the main air -supply pipe will be of any pressure desired. In the normal operation of the system, as

The thermostat dcred inoperative by the holding mcinhers'm therein so that the system will operate the same as if this attachment were not applied to the thermostat. l nder these conditions the temperature of the room is dependent upon the position of the imlicating arm 21 over the marked dial shown in l 'ig. At night time, however, when it not desired to use many of the rooms, the air is supplied through the pipe 31- at, Ll' UY'GX- ample, one-half the normal pressure. This 30 pressure is not suliicient for the secondary valve motor F to close the secondary valve l) but it is great enough to pern'iit the air to operate the primary valve motor (J whereby the primary valve will be closed and conseg5 quently the heat will be shut off merely by the reducing oi the pre sure of the air. Should it be desired, however, to heat any particular room, all that is necessary 1sfor the attendant to release the locking member ot' the attachment A indicated in Fig. 1 or the locking member of the device orattachmcnt K indicated in' Figs. 5 and (3 whereby it can assist the secondary motor to close and to hold closed the secondary valve.

Under these conditions the thermostat can operateto control the temperature of the room by the opening and'closing of the secondary valve 1* even though the pressure of the air supplied to the secondary valve mo- 10o tor has been reduced, and this without changing the position of the indicating arm relative to the marked dial.

it is immaterial to the occupants Whetheror not the room he maintained at 10.7

a uniform temperature, but at the same time be heated, all that will be necessary for the attendant to do will be to press or move the secondary valve E to closed position as by inserting a match or wedge between the swinging yoke or frame 1 and the main frame or backing 3 so that the free end of the yoke will be held in its outer position relative to the frame, thus maintaining the secondary valve, indicated as E in Figso 1'15 and 6, closed. This will permit the spring in the primary motor G to open theprimary valve and the match or wedge will to a certain-degree be the equivalent of'the device or' attachment A or K as to the feature of 12b holding the secondary valve open.

/Vhile theradiators R are shown as being located directlywithin the ditt'erentrooms still it is manifest thatthese radiators'would be Within the, different rooms, Within the sense of the presentinvention it they were each located Within a doctor air conduit for supplying pair to the interior of the room heated indirectly by the radiator.

The Improvements herein set forth are not 65 ranged for holding said means which enlimited to the precise construction and arrangement shown and described as they may be embodied in various forms and modifications without departing from the spirit and 5 scope of the invention.

WhatIclaimis: v. 1. A thermostatic temperature regulating apparatus comprising an air operated motor for operating a primary valve, a secondary valve mechanism controlling said-motor, an

air operated motor for operating said secondary valve, and a thermostatic valve controlling said second motor; said regulating apparatus having in combination with the secondary valve mechanism a device or at-,

tachment which is constructed and arranged a I so that it can be properly positioned-whereby the. secondary valve will be: normally operatedv by its motor when the air supply to a said motor is at a certain pressure and whereby, when desired, said-device or at tachment can be brought into operation'so as to assist the secondary motor to operate the secondaryv valve when the air supply to 5 said motor is at a differentpressure.

2. A device or attachment for use in or-in combination with a thermostat having-a secondary valve and a motor for operating the same, said device or attachment comprising 0 a body member, a lever pivoted thereto,'a

spring between the lever and body member for forcing the lever in a position to assist the motor in the operation of the secondary valve and locking means for holding the lever in a position where it cannot assist the motor in the operation of said valve.

3. An attachment for thermostats, said attachment comprising in combination a between the body and lever and a'locking member for holding the lever'so-tha't-the spring will not operate the same.

' 4, An attachment for thermostats comprising a body member, a lever pivoted thereupon, acomp'ressmn spring between one end-of the lever and the body-member and a lever locking member carried by the body member and'arranged to engagethe 5 other end of the, lever, the lever being also providedwith a laterally extending lugfor engaging a yoke ofa therm'ostat- I 5. A thermostat comprising an indicating arm, ,a dial, a secondary valve, a secondary valve motor, a sensitive thermostatic valvefor controlling; the operation of the seco dary valve motor, which said sensitive va V6 is operatively related to the indicating aim, mechanism comprising a swinging yoke. :QI

member whereby the secondary valveflcqn be operated by said motor, means arranged" so as to engage said yoke or swinging member for assisting the motor in movmgjsmd swinging member .and locking means ar 40 body, a lever pivoted thereupon, a spring gage the yoke or swinging member from assis'ting' in movingsaid yoke or swinging member;

- 6. Athermostatcomprising'a dial, an in? =idi'catorcarm,-'a sensitive thermostatic valveoperatively "connectedtosaid arm" and er ranged to-"control the operation ofa s'ecoiid ary motor, a "secondary" valve, mechanism comprising a-yoke-whereby the secondary motor can operate the 's econdary valve," a'

- .spring pressed 'lever arranged so that the 'springby'mea'ns of 'sa id lever 'can" assist said motor in moving said seconda yflvalv and locking means for holdingtlie lev" r inoperativepositiom 1 i t 7." The method of operating heatingisy tem'tha't comprises aplur'ality ofradiator medium" to said radiator, primaryg yalve "motor -connected' to -'ea'cl'i'.ypriima'i y' valve, means for supplying airund'er means for supplying a iheating melc'li ufifto .sa'jd radiators, a' primary valye" for "eac "radiator {for' controlling the'fifow of "heating ""sa'id motor whereby .the prima'ry valve "can I I beclosed' saidinotor when'theainsuppIy to said motor is open, a "secondary' vaiii,- -foi; regulating "the flow-of 'a ir' tofthe fpriinary i notor, an air operated secoii-d r'ymotdr cfq g 'nectd with the -'s pp y for are granary motor, sensitive thermostatic valve for "Conn-011mg 'said' secondary mo for operating said in'otors' zit a 'nbr i'nal' presmotor below the'norma-lljsuch amoii a jtiiat the secondary motor cannotope iateto move] the "secondary" valve whereyit vent'th' a W s s method comprises the maintaining of theair sure when it is desired ,to heat practically i9 v (if the rooms iii tlfl' d eg reas ,in'g, when the rooms'are nottojbe otcupied, 0f the pressure ofthejair supplied othe" primary motor whereby the radiators' the below the desireddegree. i.

ity of radiators located in difierentrooms of building, means for supplying", a heating medium to said radiators, a primary valve for each radiator for controlling the flow of heating mediiimto said radiator, a primarv- "valve motor connected to each primary valve, means for supply ng. air under pres-v -1, valve can be closed by said motor when the air sup ly' to SHIdmOtOIiS-OPQII, a secondary,

sure to said 'motor" whereby the primary 8;.A heating system comprising a pIuralvalve or-regulating thejflow of air to'the 7 primary motor and constructed so as to vent.

. the latter, an air operated secondary valvef ao motor, connected with the air supply for the primary motor, a sensitive thermostatic valve for controlling the secondary motor, means whereby the air supplied to the motor will in the normal operation of the system be at one pressure but Which will cause the pressure of air supplied to the motor to be decreased when the system is not in normal operation, and means for assisting in holding the secondary valve so that it can vent the primary motor when the pressure is thus decreased whereby the primary valve can open.

9. The method of operating a heating system having diiferent radiators adapted to heat diilerentyrooms, a pressure-operated valve for controlling the flow of heating fluid to each radiator, a common source of motive fluid under pressure and a conduit leading from said source to each valve for supplying motive fluid thereto, each particular room thus heated having a thermostatic device coia'peratively connected to the conduit leading to the pressure-operated valve controlling the particular radiator adapted to heat the particular room, which method consists at one time in supplying the motive fluid at a normal pressure from saidcommon source and regulating by means of the thermostatic devices the condition within the several conduits, whereby said pressure-operated valves will control the radiators to maintain the desired temperature in the different rooms, and at another time in supplying motive fluid at such an abnormal'pressure to said conduits that all said pressureoperated valves will shut off the supply of heating medium to the radiators, and in bringing into cotiperative relationship with said system other-means whereby only a desired member of the pressure-operated valves will be opened to permit heating the desired rooms, the rest of the pressure operated valves still remaining closed.

10. A heating system having different radiators adapted to heat different rooms, a pressure-operated valve for each radiator for controlling the flow of heating fiuid to its radiator, a pipe or conduit for each said valve and leading to each said valve from a common source of motive fluid supply, each room thus heated having a thermostatic device which is coiiperatively connected to the pipe leading, to the pressure-operated valve for the radiator that supplies heat to the particular room, the construction of the systern being such that when motive fluid is supplied at a normal pressure from the' source the thermostatic devices for the different rooms will each operate to vary the said system being also provided with means which can be positioned so that when motive fluid is'supplied at a certain abnormal pressure from said source of supply, a desired part of said pressure-operated valves will be automatically closed while the desired remainder of said pressure-operated valves will be open or will remain open to efiect a heating of the rooms desired to be heated.

11. The method of operating a heating system that comprises several radiators, a

' primary valve connected to each radiator, a

motor for operating each of said valves, a secondary valve for each primary valve niotor for controlling the flow of operating fluid to said motor, a motor for each secondary valve, a thermostatic valve member for each secondary valve motor for controlling the operation thereof, and a device or at tachmcnt that can be adjusted or positioned so as to determine whether or not the secondary valve that is thus under the control of the thermostatic valve member will permit the flow of operating fluid under pressure to said primary valve motor whereby the primary valve will be opened to permit the flovv of a heating medium to the radiator to which the primary valve is connected, which method comprises the positioning of certain of said devices or attachments and the supplying to said secondary valve motors of motor operating fluid or air at one pressure when a certain number of radiators are required for heating purposes, and the supplying ofthe air to said secondary valve motors at a different pressure when other radiators or when another combination of radiators are or is required for heating purposes.

12. The method of operating a heating system comprising several radiators, means for supplying a heating medium thereto, which means comprises a primary valve for each radiator for controlling'the How of heating medium thereto, a thermostatically controlled pressure operated motor for con trolling the operation of each of said primary valves, means for supplying operating fluid to said motors, a thermostatic member for each of said motors, and means comprising a device or attachment which can be adjusted orpositioned so as to determine whether or not the primary valve that is thus controlled by said thermostatically controlled pressure operated motor will permit the flow of heating medium to the radiator when the air for operating said motor has been changed to an abnormal pressure, which method comprises supplyingmotor operating air or fluid at a normal pressure to said thermostatically controlled motor when all of the radiators are to be utilized, and at an abnormal pressure to said thermostatically controlled motor vvhen only a part whereby when the motor operatingair or.,

fluid is the abnormal pressure a desired part or number of the radiators w-ilhbe aiit omati-,

cally supplied with the, heating medium at a time'when .th'ehheating medium issh'ut off from the rest of the radiators. d

'13. A heatiilg system having several ra diators, a valve for eachracliator"forc01 2 trolling the flow pf heating medium thereto,

and thermostatically cohtrolled pressureoperated means for positioning" each ofsaid' valves, the system being eonstructediso a .1 a part of the radiators will be supplied with to maintain a normal pressure whenall of heat While the rest of the radiators are cut the radiators are to be automaticallvfsup plied with heating-fluidand so-astofmain tain an abnormalgpressure when only a part to devices or; attachments applied to. said 14. A heating system comprising several radiators, a primary valve for each radiator, a motor for each primary ,valve a" thermostatic valve comprising a means for supply ing air under pressure to said'motor'sfsaid air-supply means also being provided with a device and also constructed so thatfat'nob mal pressure the primary valve Will be autolmatically regulated to permit a flow of heating medium to the radiators and so that when said device is properly positioned only 5 This specification signed and witnessed this 16th; day of J anualy, A- D/19l4a of said radiators are desired to be utilized," i the construction also being such that a part' w v 1 I of the radiators can be prevented-from re- Signediri the presence ofceiving the flow of the heating medium due,

; JAMES F. GALLAGHEIK G. McG

. RANK;

thermostatically. controlled pressure-operated mea'nsfivhereby apart of the radiators jean be supplied with heating fluid'while the rest ofth'e radiators are cut off. 

